X     valve



CII

Patented Jan. 2, 1923.

UNITED STATES* masse nnwnnnw. soRIBNm-t, on noUTH'AT, AND onlin nanna', or "MIAMI, orinar-Iona.

VALVE.

' `Application ledNovember 2, 1921. Serial No. 512,360.

To all whom t may concern: Be it known that we, EDWARD W. Sonie- NER and OLAF BAKER, citizens of the United States7 residing at Doutliat, in the county of Ottawa, and Miami, inthe county of Ottawa, and State otOklahoma, respectively, have invented certain. new and useful Improvements in Valves, ot ywhich'the :tollowing is a specification.

This inventionrelates to automa-tic control valves, and moreparticularly to valves adapted to be arranged in gas lines and maintained in openposition by the pressure of the gas whenit exceeds a predetermined amount, but adapted to automatically "close when the pressure falls below a .predetermined point.

In the present invention, we have provided an automatic valve of this type wherein a pivoted lever isemployed, the lever carrying a valve Whichvis adapted to close the gas line when the lever is in lowered position. The pivot is so arranged that the valve will assume a closed position under normal conditions, anda flow of gas of a predetermined amount is necessary to maintain the valve end oi' the lever in raised position. Adjacent the pivot, a block is secured to the le'ver and this block is provided with a threaded shaft adapted Ito carry a weight, whereby the weight may be adjusted longitudinally and the propor tional weights ot the ends ot the lever may be varied.

.lt is an object oit' the present invention to provide a valve oit `this type which may be adjusted to close automatically at ditl'erent pressures.

lt is a further object to provide a valve wherein adjustment is obtainedthrough av regulating weightmounted adjacent the pivot.

In the accompanying drawings, we have `shown one embodiment of the invention. In

this showing:

Figure l is a vertical longitudinal sectional view,

Figure 2 is a transverse vertical sectional view on line 2 2 of Figure l, y

. Figure 3 is a similar viewpon line 33 of Figure l, and,

Figure 4 is a ber.`

Referring to the drawings, the reference numeral lfdesigna-tes a boX or casing in which the valve is mounted. This casing is detail view of a crank inem- `mit access to the interior.

provided with a removable cover 2, to-per- The cover `is maintained in position by means of bolts 3, passing through it and through openings in a flanges, formed on the casing. Suitable packing 5 may be providedto prevent leakage'. The bottom of the casing is provided 4with an opening surrounded by an internally threaded iiange 6. 'This flange is adapted to receive a'plug 7 having an inlet port 8 and an outlet and ll are connected to the ports respectively.

A pivoted plate or lever l2 is mounted in the casing above the ports S and 9. As shown, this member` is relatively broad, en` 1 'tending to points adjacent each side of the casing, so that the gas passing through the port 8 will .come in contact with its under side and normally retain Vit in the dotted line position shown in vFigure' l of the drawings. The lever is lprovided with ashatt v13 adjacent its other end, having` conical recesses in eaclr end. 7These recesses are adapted to receive the pointspoi` hearing pins let which are mounted in suitable enlargements l5 in the side walls of the casing. One of the pins is threaded, as shown, to permit adjustment."

A valve 1G is carried by the forward end ot the lever and is adapted to close the outlet port 9 when the lever is in lowered position. A block 17 is secured to the rear end of the lever and extends in each direction beyoiul thev pivot. This block is provided with a recess or cut-out portion 18. The ends of the recess are partially closed by walls 19 und a threaded rod or slia't 20 is mounted therein. A weight 2l is arrangedon this rod, the weight being provided with anr internally threaded opening for the reception of the rod.

VV hen thelow ot gas has been cut off, and

the valve is to be reopened, a shaft 22,

tion 24, formed on the end thereof, to enport 9. Inlet and outlet pipes l0 l gage the under side of thek lever. The outer end of shaft 22 is provided with a handle 25. The operation ot the device is .as follows:

The weight of the portion or the lever ai# ranged in front of the pivot greater than the weight of `the portion arranged in the rear so that the lever will normally maintain the ]i osition shown in .tull lines in Figure l of the drawings when there is no flow oi" Cgi gas. The valvel is then in Closed position. Then the device` is to be used,the shaft 22 is turned to raise the lever to the dotted line position, and the flow of gas from nthejpipe l maintains the lever in raised position. When the pressure in the gas line 'alls below a predetermined amount, the plate lowers and the valve assumes aelosed position.

rlhe weight 2l may be adjusted longitudinally of the shaft 20 to vary the proportion 01"' the weight on each side of the pivot and ythus vary the VVVpressure at f which `the valve will automatically olose.

llt is to be understood that the 'term oi our `inventim herewith shown and described is provided with apair of passages forming an inlet and an outlet, pipes connected to the outer ends of said passages, a plate pivotally mounted in said casing anddisposed over said passages, whereby the iiow of gas will normally retain saidgplate in a raisedposi-4 tion, ya valve Carried byv said plate and/adapted toeelose said'inletwhen in lowered position, anda weight-adjustably mounted on said plate to'permit regulation of the force shaft.

Vvnecessary to retain saidplate in raised position.

2. An automatic gas valve comprising a casing having an inlet and an outlet, a. lever pivotally monntedtherein, said lever being adapted to assume a lowered positionI` but being normally maintained in raised positionby the iow of gas, a valve carried by said lever and adapted to close said outlet when the lever is lowered, a block secured to-said leveradjacent said pivot, said block Ybeing provided with a recess, and a weight mountedin said recess and adjustable longitudinally ot' said block.

3. An yautornatie gas valve comprising a casing having an inlet andan outlet, a lever pivotally mounted therein, said lever being adapted to assume lowered positioinbut being normally,maintained iii-raised position by the flow or" gas, avalvecarried by said lever and adapted to elose saidoutlet whenthe lever` is lowered, a block secured .to said lever adjacent saidpivot, said-:block being lprovided with a recess, a threaded vshaft mounted in said recess, and a weight mounted on said shaft, said weight being adapted tobe adjusted by rotation of said In testimony whereoil we aiiiX ourvsignatures in presence ot twowitnesses'.

EDWARD WV. SCRIBNER. OLAF BAKER. 4Vit-nesses Y NOEL W. YATT, f ROY DnPRn. 

